Campbell, D. P. (1999). The complete inklings: Columns on leadership and creativity. Center for Creative Leadership.
Chicago-Zitierstil (17. Ausg.)Campbell, David P. The Complete Inklings: Columns on Leadership and Creativity. Greensboro, N.C: Center for Creative Leadership, 1999.
MLA-Zitierstil (9. Ausg.)Campbell, David P. The Complete Inklings: Columns on Leadership and Creativity. Center for Creative Leadership, 1999.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.